I use a similar concept when shooting with the dead release. There is no difference in my way of shooting with the dead release and the way Rod Jenkins teaches the dynamic release through the commitment phase of the shot. Rod teaches that aiming should not take place until after you have come to full draw and anchored and have committed to the shot. Of course, it is helpful as you draw the bow to anchor to have your body in alignment with the target and the arrow pointed generally where you want it to go, so that no major adjustments need to be made during the aiming phase of the shot, which requires some level of target awareness while drawing the bow. I believe that Rod recommends that your conscious mind focus on nothing but aiming during the aiming phase of the shot, while leaving expansion to the subconscious mind, which seems to be the opposite of what you do, but you both recognize that the conscious mind is only capable of one activity at a time.
I too have had problems maintaining back tension while aiming, but using the dead release, my problem is more not losing back tension than expanding it. What I have been doing, which seems to work, is for the last conscious thought I have, just before concentrating on aiming, to be setting the level of back tension I want, which I can feel by the pressure of the string on my eye socket, and be aware of that pressure as I begin to aim. I think I lose this awareness as my full concentration shifts to aiming, but I seem to be able to maintain back tension without consciously thinking about it for those few moments of aiming, so long as it is the last conscious thought I have.
My release is triggered subconsciously after shifting my focus to aiming, the same as Rod describes for his dynamic release, and followthrough is also the same as Rod describes.